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I run the same nature and EV spread, but change up my moveset.
Krookodile @ Expert Belt or Life Orb
Jolly
252 Attack / 252 Speed / 4 HP
Earthquake
Crunch
Stone Edge/Rock Slide
Power Up Punch/Brick Break
Thunder Fang/Outrage/Dragon Claw
It really depends on what you need on your team. Unfortunately this gen it hasn't been great but it's pulled off some huge sweeps for me in doubles. It's hilarious getting a Moxie boost by killing your teammate.
Just experiment and try it out.